Example usage for org.bouncycastle.crypto.macs HMac getUnderlyingDigest

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.macs HMac getUnderlyingDigest.

Prototype

public Digest getUnderlyingDigest() 

Source Link

Usage

From source file:com.joyent.manta.client.crypto.SupportedHmacsLookupMap.java

License:Open Source License

/**
 * Finds the HMAC implementation name based on the passed object.
 *
 * @param hmac instance to find name for
 * @return the name of implementation used by the SDK
 *//*from   w  w w .  j a va  2  s  . c o  m*/
public static String hmacNameFromInstance(final HMac hmac) {
    Validate.notNull(hmac, "HMAC instance must not be null");

    final String digestName = hmac.getUnderlyingDigest().getAlgorithmName();
    return "Hmac" + StringUtils.strip(digestName, "-");
}

---

From source file:com.joyent.manta.serialization.HmacSerializer.java

License:Open Source License

@Override
@SuppressWarnings("unchecked")
public void write(final Kryo kryo, final Output output, final HMac object) {
    final EncodableDigest ipadState = (EncodableDigest) readField(ipadStateField, object);
    final EncodableDigest opadState = (EncodableDigest) readField(opadStateField, object);

    final EncodableDigest digest = (EncodableDigest) object.getUnderlyingDigest();

    kryo.writeObject(output, digest.getClass());
    output.writeInt(digest.getEncodedState().length);
    output.write(digest.getEncodedState());
    output.writeInt(ipadState.getEncodedState().length);
    output.write(ipadState.getEncodedState());
    output.writeInt(opadState.getEncodedState().length);
    output.write(opadState.getEncodedState());

    output.flush();// ww w . j  a  v a 2  s  .  c om
}

---

From source file:com.joyent.manta.util.HmacCloner.java

License:Open Source License

@Override
public HMac createClone(final HMac source) {
    final Digest originalDigest = source.getUnderlyingDigest();
    final Digest clonedDigest = new DigestCloner().createClone(originalDigest);
    final HMac cloned = new HMac(clonedDigest);

    try {//from   ww w .j  a v  a2  s .  c o  m
        final Memoable ipadState = (Memoable) readField(FIELD_IPAD_STATE, source, true);
        final Memoable opadState = (Memoable) readField(FIELD_OPAD_STATE, source, true);

        writeField(FIELD_IPAD_STATE, cloned, ipadState.copy());
        writeField(FIELD_OPAD_STATE, cloned, opadState.copy());
    } catch (IllegalAccessException e) {
        throw new MantaReflectionException(e);
    }

    return cloned;
}

---

From source file:net.oauth.j2me.signature.HMACSHA1Signature.java

License:Apache License

public String getSignature() {
    try {/*from  w  w  w . ja v  a  2s. c  o  m*/
        HMac m = new HMac(new SHA1Digest());
        m.init(new KeyParameter(key.getBytes("UTF-8")));
        byte[] bytes = message.getBytes("UTF-8");
        m.update(bytes, 0, bytes.length);
        byte[] mac = new byte[m.getMacSize()];
        m.doFinal(mac, 0);
        signature = new String(Util.base64Encode(mac));

        // debug
        System.out.println("mac alg: " + m.getAlgorithmName());
        System.out.println("dig alg: " + m.getUnderlyingDigest().getAlgorithmName());
        System.out.println("key: " + key);
        System.out.println("message: " + message);
        System.out.println("unencoded: " + new String(mac));
        System.out.println("sig: " + signature);
    } catch (java.io.UnsupportedEncodingException e) {
        ;
    } catch (Exception e) {
        ;
    }

    return signature;
}

---